Trajtracker unsupported operand type
in Expyriment
Hi all!
I tried using Trajtracker in Win 8 64 bit and Expyriment 0.9.0. When the pointer click (not yet moving) on rectangle white box always causes an error :
TypeError:unsupported operand type for : 'float' and 'Nonetype'
I think the problem with the operation " - " after the different type float and nonetype. But how I solve this?
Many Thanks!!

Comments
Hi Tanto,
from your post it is not clear weather this is an error in Expyriment, Trajtracker, or your code.
Could you post a code example and the full traceback to the error?
Hi Fladd,
This error considering a bug from Dror in Trajtracker, just upgrade Trajtracker via pip solve the problem (pip install --upgrade trajtracker).
Sorry about delay and thanks
Glad to hear that it is resolved.